Lightweight catenary ratchet compensation device

Abstract

The utility model discloses a kind of light-weight contact net ratchet compensation devices, belong to railway contact net compensation technical field. Including ratchet base and ratchet support, the ratchet support is movably installed on ratchet base, the ratchet base has two side plates and connecting plate, the connecting plate is integrally formed and cross section is C-shaped, the side plate is fixed on the two sides of connecting plate rear, the side plate is fixedly connected with pillar;The ratchet support is integrally formed and bottom has the clamping stop portion inclined to oblique upper side, the clamping stop portion exceeds the bottom end of ratchet base. Change the design that previous ratchet support is completely covered in ratchet base, so that the material of ratchet base and ratchet support is reduced, cost is greatly reduced, that is, the connection area of ratchet base and ratchet support and pillar whole becomes smaller, so that the fastener used is less, improve the efficiency of assembly, reduce construction labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of railway catenary compensation technology, specifically a lightweight catenary ratchet compensation device. Background Technology

[0002] The railway catenary anchor compensation device is a core component that ensures the stability of the tension between the contact wire and the catenary. Its core function is to ensure that the pantograph-catenary system maintains a reliable current collection state under conditions such as temperature changes and load fluctuations by automatically adjusting the wire length. At the same time, it realizes overload protection and fault redundancy, and is a "tension regulator" that ensures the safe and efficient operation of the railway electrification system.

[0003] When the ambient temperature changes, the contact wire and catenary will change length due to thermal expansion and contraction. The compensation device needs to use the weight of the weight or the spring force to drive pulleys, ratchet, and other mechanisms to adjust the wire tension in real time, keeping the contact wire tension fluctuations within a normal range to prevent the wire from breaking or becoming excessively slack due to sudden tension changes. In the event of a contact wire breakage, the braking device of the compensation device must quickly lock the compensation rope to prevent the weight from falling and causing secondary disasters, further reducing the scope of the accident and preventing the weight from falling into the clearance and causing a train accident.

[0004] Compensation devices are mainly divided into pulley compensation devices and ratchet compensation devices according to the usage environment and project requirements. Among them, ratchet compensation devices are widely used because they have a broken line braking function. Under normal working conditions, a certain gap is maintained between the ratchet teeth and the brake block of the ratchet compensation device to ensure that the ratchet can rotate freely. When the line breaks, the ratchet and the weight fall under the action of gravity. The ratchet teeth will engage with the brake block, causing the weight to fall within the specified range, thus achieving safety protection.

[0005] However, existing traditional ratchet compensation devices have significant shortcomings: First, they have a large number of parts, especially standard parts such as bolts, washers, and nuts, which not only leads to low assembly and installation efficiency but also makes them prone to malfunctions or safety accidents due to loose fasteners, affecting the safety and stability of the device during service; Second, core components such as the ratchet base and ratchet connecting frame are relatively heavy, further reducing assembly and installation efficiency and increasing the labor intensity of construction; Third, the large amount of carbon steel used, combined with the large demand for ratchet compensation devices in railway construction, results in high production costs, which is not conducive to controlling project construction costs.

[0006] Therefore, it is necessary to provide a lightweight contact wire ratchet compensation device to solve the above problems. Utility Model Content

[0007] Based on the aforementioned problems in the existing technology, the purpose of this utility model is to provide a lightweight contact wire ratchet compensation device to solve the problems mentioned in the background technology.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a lightweight contact wire ratchet compensation device, including a ratchet base and a ratchet bracket. The ratchet bracket is movably installed on the ratchet base. The ratchet base has two side plates and a connecting plate. The connecting plate is integrally formed and has a C-shaped cross-section. The side plates are fixed on both sides behind the connecting plate. The side plates are fixedly connected to the support column. The ratchet bracket is integrally formed and has a locking part at the bottom that is inclined upwards, the locking part extending beyond the bottom end of the ratchet base.

[0009] Furthermore, the ratchet base and ratchet bracket are made of carbon steel.

[0010] Furthermore, the top of the connecting plate is an upper wing, and the bottom is a lower wing; The ratchet bracket has a hollow center, and a base shaft is vertically installed inside the hollow center. The ratchet bracket is mounted on the connecting plate via the base shaft. The upper surface of the ratchet bracket abuts against the upper wing edge, and the lower surface abuts against the lower wing edge.

[0011] Furthermore, a connecting plate shaft is horizontally installed inside the hollow part, and connecting plates are rotatably installed at both ends of the connecting plate shaft. The connecting plates are located on both sides of the ratchet bracket, and a support column and a rotating shaft are rotatably connected to the connecting plates. The support column is located between the connecting plate shaft and the rotating shaft.

[0012] Furthermore, the ratchet bracket has a reinforcing rib on the bottom front side, which extends to the locking part, and a supporting rib on the back side, which abuts against the bottom of the connecting shaft of the connecting plate.

[0013] Furthermore, a ratchet is rotatably connected to the rotating shaft, and the ratchet has teeth on both sides of its outer peripheral wall, which match the locking part.

[0014] Furthermore, the ratchet is provided with a rope groove, which is located between two rings of teeth. The rope groove contains a rope, one end of which is fixedly connected to the rope groove, and the other end is connected to a weight.

[0015] Furthermore, the ratchet is also provided with a compensating rope groove, which is located on both sides of the compensating rope groove. The compensating rope is contained in the compensating rope groove, one end of which is fixedly connected to one of the rope grooves and the other end is fixedly connected to the other compensating rope groove.

[0016] Furthermore, a balance wheel is also installed on the compensating rope, and the diameter of the balance wheel is consistent with the distance between the centers of the two compensating rope grooves.

[0017] The beneficial effects of this utility model are as follows: The lightweight contact wire ratchet compensation device provided by this utility model reduces the overall weight of the device by setting a ratchet base and ratchet bracket made of carbon steel. By setting an integrally formed ratchet bracket and a C-shaped integrated connecting plate, the locking part is set at a position protruding from the ratchet base, which changes the previous design in which the ratchet bracket was completely covered by the ratchet base. This reduces the material used for the ratchet base and ratchet bracket, and greatly reduces the cost. That is, the connection area between the ratchet base and ratchet bracket and the support is reduced, thus reducing the number of fasteners used, improving assembly efficiency and reducing construction labor intensity. By placing the base shaft inside the hollow part, the ratchet bracket can move in four directions (forward, backward, left, and right) inside the hollow part, leaving a certain margin for the movement position of the ratchet bracket and increasing the compensation amount. By adding reinforcing ribs and supporting ribs to the ratchet bracket, the overall rigidity of the ratchet bracket is increased, preventing the stopping part from breaking due to the weight of the weight and ratchet.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the ratchet base of this utility model; Figure 3 This is a schematic diagram of the ratchet bracket of this utility model; Figure 4 This is a schematic cross-sectional view of the ratchet bracket of this utility model; Figure 5 This is a schematic diagram showing the position of the ratchet in this utility model; Figure 6 This is a top view of the ratchet of this utility model; The following are the labeling elements in the figure: 1. Support column; 2. Ratchet base; 21. Side plate; 22. Connecting plate; 221. Upper wing edge; 222. Lower wing edge; 3. Ratchet bracket; 301. Hollow part; 302. Stopping part; 303. Reinforcing rib; 304. Support rib; 31. Base shaft; 32. Connecting plate connecting shaft; 4. Connecting plate; 41. Support column; 42. Rotating shaft; 5. Ratchet; 501. Tooth; 502. Lifting rope groove; 503. Compensating rope groove; 6. Compensating rope; 7. Balance wheel; 8. Lifting rope. Detailed Implementation

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] like Figure 1-6 As shown, the present invention provides a technical solution: a lightweight contact wire ratchet compensation device, installed on a support column 1, including a ratchet base 2 and a ratchet bracket 3. The ratchet bracket 3 is movably installed on the ratchet base 2. The ratchet base 2 has two side plates 21 and a connecting plate 22. The connecting plate 22 is integrally formed and has a C-shaped cross-section. The side plates 21 are fixed on both sides behind the connecting plate 22. The side plates 21 are fixedly connected to the support column 1. The ratchet bracket 3 is integrally formed and has an upwardly inclined locking part 302 at the bottom, which extends beyond the bottom of the ratchet base 2. The connecting plate 22 can be connected to the side plate 21 with only one set of screws, and the side plate 21 can be connected to the support column 1 at the same time, which reduces the number of screws used and reduces the weight of the device.

[0023] The ratchet base 2 and ratchet bracket 3 are made of carbon steel.

[0024] The top of the connecting plate 22 is the upper wing 221, and the bottom is the lower wing 222; The ratchet bracket 3 has a hollow section 301 at its center, and a base shaft 31 is vertically mounted inside the hollow section 301. The ratchet bracket 3 is mounted on the connecting plate 22 via the base shaft 31. The upper surface of the ratchet bracket 3 abuts against the upper wing edge 221, and the lower surface abuts against the lower wing edge 222. This restricts the ratchet bracket 3's movement in the up and down directions, while the base shaft 31 can move in the forward, backward, left, and right directions within the hollow section 301, allowing for a certain margin of movement for the ratchet bracket 3.

[0025] Inside the hollow part 301, a connecting plate connecting shaft 32 is also installed laterally. Connecting plates 4 are rotatably installed at both ends of the connecting plate connecting shaft 32. The connecting plates 4 are located on both sides of the ratchet bracket 3. A support column 41 and a rotating shaft 42 are also rotatably connected to the connecting plates 4. The support column 41 is located between the connecting plate connecting shaft 32 and the rotating shaft 42.

[0026] The ratchet bracket 3 has a reinforcing rib 303 on its front bottom, which extends to the locking part 302. The ratchet bracket 3 has a supporting rib 304 on its back, which abuts against the bottom of the connecting shaft 32. The reinforcing rib 303 increases the strength of the locking part 302, and the supporting rib 304 abuts against the connecting shaft 32, further increasing the overall strength of the ratchet bracket 3 and preventing the locking part 302 from breaking when subjected to the impact force of the ratchet 5.

[0027] A ratchet 5 is rotatably connected to the rotating shaft 42. Both sides of the outer peripheral wall of the ratchet 5 have teeth 501, which are matched with the locking part 302.

[0028] The ratchet 5 is also provided with a rope groove 502, which is located between two rings of teeth 501. The rope groove 502 contains a rope 8, one end of which is fixedly connected to the rope groove 502, and the other end is connected to a weight.

[0029] The ratchet 5 is also provided with a compensating rope groove 503. The compensating rope groove 503 is located on both sides of the compensating rope groove 503. The compensating rope 6 is located in the compensating rope groove 503. One end of the compensating rope 6 is fixedly connected to one of the suspension rope grooves 502, and the other end is fixedly connected to the other compensating rope groove 503.

[0030] The compensating rope 6 is also equipped with a balance wheel 7, the diameter of which is the same as the distance between the centers of the two compensating rope grooves 503.

[0031] In one embodiment, the lightweight compensation device operates on the following principle:

[0032] Specifically, the side plate 21 is horizontally installed on both sides of the support column 1, and the connecting plate 22 is connected to the side plate 21. After the ratchet bracket 3 is inserted into the opening of the connecting plate 22, the base shaft 31 is inserted into the hollow part 301 so that the ratchet bracket 3 is connected to the ratchet base 2. The connecting plate 4 is installed on both sides of the ratchet bracket 3 via the connecting plate connecting shaft 32, and the ratchet 5 is installed on the other end of the connecting plate 4 via the rotating shaft 42. The weight is installed on the suspension rope 8, and the balance wheel 7 is connected to the contact network. At this time, the ratchet 5 is lifted by the tension of the contact network, so that the connecting plate connecting shaft 32 and the rotating shaft 42 tend to be in a horizontal position. The weight is always vertically downward under the influence of gravity. The horizontal force and the vertically downward force lift the ratchet 5. During the use of the contact network, the ratchet 5 will finely adjust the length of the compensating rope 6 by rotating. At the same time, the ratchet 5 will also adjust its vertical angle with the connecting plate shaft 32 as the axis. The base shaft 31 can also move in four directions (forward, backward, left, and right) within the hollow part 301 to dynamically adjust the contact network. After the compensating rope 6 is broken, the parallel force disappears, and the weight of the weight causes the ratchet 5 to fall. At this time, the teeth 501 of the ratchet 5 are locked on the locking part 302, which prevents the ratchet 5 from rotating, making the length of the suspension rope 8 longer, causing the weight to fall to the ground. The reinforcing ribs 303 and the supporting ribs 304 increase the overall rigidity of the ratchet bracket 3, preventing the locking part 302 from breaking due to the weight of the weight and the ratchet 5.

[0033] In summary, this device reduces the overall weight of the device by incorporating a ratchet base 2 and a ratchet bracket 3 made of carbon steel. By incorporating an integrally formed ratchet bracket 3 and a C-shaped integrated connecting plate 22, the locking part 302 is positioned protruding from the ratchet base 2, changing the previous design where the ratchet bracket 3 was completely enclosed by the ratchet base 2. This reduces the material used for the ratchet base 2 and ratchet bracket 3, greatly reducing costs. In other words, the connection area between the ratchet base 2 and ratchet bracket 3 and the support column 1 is reduced, thus reducing the number of fasteners used, improving assembly efficiency, and reducing construction labor intensity. By placing the base shaft 31 inside the hollow part 301, the ratchet bracket 3 can move in four directions (forward, backward, left, and right) inside the hollow part 301, leaving a certain margin for the movement position of the ratchet bracket 3 and increasing the compensation amount. By providing reinforcing ribs 303 and supporting ribs 304 on the ratchet bracket 3, the overall rigidity of the ratchet bracket 3 is increased, preventing the locking part 302 from breaking due to the weight of the weight and ratchet 5.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lightweight contact wire ratchet compensation device, installed on a support column (1), characterized in that: It includes a ratchet base (2) and a ratchet bracket (3). The ratchet bracket (3) is movably mounted on the ratchet base (2). The ratchet base (2) has two side plates (21) and a connecting plate (22). The connecting plate (22) is integrally formed and has a C-shaped cross-section. The side plates (21) are fixed on both sides behind the connecting plate (22). The side plates (21) are fixedly connected to the support column (1). The ratchet bracket (3) is integrally formed and has a stop part (302) that is inclined upward at the bottom, the stop part (302) extending beyond the bottom end of the ratchet base (2).

2. The lightweight contact wire ratchet compensation device according to claim 1, characterized in that: The ratchet base (2) and ratchet bracket (3) are made of carbon steel.

3. The lightweight contact wire ratchet compensation device according to claim 1, characterized in that: The top of the connecting plate (22) is the upper wing (221), and the bottom is the lower wing (222). The ratchet bracket (3) has a hollow part (301) at its center. A base shaft (31) is vertically installed inside the hollow part (301). The ratchet bracket (3) is mounted on the connecting plate (22) through the base shaft (31). The upper surface of the ratchet bracket (3) abuts against the upper wing edge (221), and the lower surface abuts against the lower wing edge (222).

4. The lightweight contact wire ratchet compensation device according to claim 3, characterized in that: A connecting plate connecting shaft (32) is also horizontally installed inside the hollow part (301). Connecting plates (4) are rotatably installed at both ends of the connecting plate connecting shaft (32). The connecting plates (4) are located on both sides of the ratchet bracket (3). A support column (41) and a rotating shaft (42) are rotatably connected to the connecting plate (4). The support column (41) is located between the connecting plate connecting shaft (32) and the rotating shaft (42).

5. The lightweight contact wire ratchet compensation device according to claim 4, characterized in that: The ratchet bracket (3) has a reinforcing rib (303) at the bottom front, which extends to the stop part (302). The ratchet bracket (3) has a supporting rib (304) on the back, which abuts against the bottom of the connecting plate shaft (32).

6. The lightweight contact wire ratchet compensation device according to claim 4, characterized in that: A ratchet (5) is rotatably connected to the rotating shaft (42). The ratchet (5) has teeth (501) on both sides of its outer peripheral wall, and the teeth (501) are matched with the locking part (302).

7. The lightweight contact wire ratchet compensation device according to claim 6, characterized in that: The ratchet (5) is also provided with a rope groove (502), which is located between two rings of teeth (501). The rope groove (502) contains a rope (8), one end of which is fixedly connected to the rope groove (502), and the other end is connected to a weight.

8. The lightweight contact wire ratchet compensation device according to claim 7, characterized in that: The ratchet (5) is also provided with a compensating rope groove (503). The compensating rope groove (503) is located on both sides of the compensating rope groove (503). The compensating rope groove (503) contains a compensating rope (6). One end of the compensating rope (6) is fixedly connected to one of the suspension rope grooves (502), and the other end is fixedly connected to the other compensating rope groove (503).

9. The lightweight contact wire ratchet compensation device according to claim 8, characterized in that: The compensating rope (6) is also equipped with a balance wheel (7), the diameter of which is the same as the distance between the centers of the two compensating rope grooves (503).

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